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Information

LLE10150 : VMware ESX: virtual machine does not start.

Symptom:

Error message: : "Faild to power on <VMName> on <ESXName> in <Datacenter>: Could not power on VM : No swap file."

Cause:

The swap file does still exist and is locked from an obsolete ("hanging") process on same or other ESX server

Solution:

This error occurs, when a VM is tried to be powered on, while another ESX host still has one or more files open. This can happen after an unsuccessful HA (failover) because of a crash or fault. Even if the following procedure helps, you should try to find the initial problem, since it might be some bigger issue in your HA/DRS!